中文摘要：

Based on researches of the crop potential productivity,the potential productivity of light,temperature,water and land from wheat in China were calculated respectively,and converted into the potential productivity of wheat straw according to the coefficient of grain-straw ratio of wheat.Furthermore,based on the wheat planting area in 2006,the potential yield of wheat straw fiber in China was estimated.The results showed that the potential yield of wheat straw fiber in China could reach 94.91 million ton,which could provide evidence for the further potential analysis of bio-ethanol.